From: Cacca Mucca (caccamucca@gmail.com)
Date: Thu Dec 07 2006 - 11:34:28 ART
Thank you all for chiming in.
On 12/7/06, CCIE4Me <ccie4me@inbox.lv> wrote:
>
> Cacca,
>
> I am using the same setup at home with a 2611 connected to a cablevision
> modem. First note the default gateway and DNS settings from the Cable
> modem,
> then connect the cable modem to one of your fasthethernet interface on the
> Cisco 1841 eg fa0/0 and do the following to enable any one connected to a
> hub/switch that is connected to fa0/1 of the router to have access to the
> internet.
> !
> interface Fastethernet0/0
> ip address dhcp
> ip nat outside
> !
> interface Fastethernet0/1
> ip address 192.168.1.1 255.255.255.0
> ip nat inside
> !
> ip dhcp excluded-address 192.168.1.1 192.168.1.10
> !
> ip dhcp pool INTERNAL
> network 192.168.1.0 255.255.255.0
> default-router 192.168.1.1
> dns-server <dns server 1> <dns server 2>
> !
> ip route 0.0.0.0 0.0.0.0 <default gateway from cable modem>
> !
> ip nat inside source list 1 interface fa0/0 overload
> access-list 1 permit 192.168.1.0 0.0.0.255
> !
>
> The above sample config should work fine, moreso you can do alot of
> interesting things with this setup just like any normal setup that is
> utilizing a manually entered ip address.
>
> Do not forget to disable DHCP on the modem, or set its ip address to
> 'static
> assigned', some modems have a 'bridging or transparent mode', research
> your
> modem and set it appropriately. The goal is to disallow the modem from
> grapping the public ip address from your ISP, but instead pass all
> traffics
> transparently to the router which will dynamically negotiate this ip
> address
> with your ISP.
>
> HTH
> Godswill Oletu
> CCIE #16464
>
> ----- Original Message -----
> From: "Cacca Mucca" <caccamucca@gmail.com>
> To: "Cisco certification" <cisco@groupstudy.com>; <ccielab@groupstudy.com>
> Sent: Thursday, December 07, 2006 6:04 AM
> Subject: Cisco 1841 with Cable Modem
>
>
> > Hi,
> >
> > I was just wondering if there is a way to connect a Cisco Router to a
> cable
> > modem?
> >
> >
> > FastEthernet port would not get IP address manually configured, as it
> would
> > have to be dynamically assigned.
> > How would you route out traffic to an ethernet interface as it is not a
> > point to point connection:
> >
> > ip route 0.0.0.0 0.0.0.0 fastethernet 0/0 <----- this is not going to
> work
> >
> > TIA
> >
> > _______________________________________________________________________
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